Tests also have proven the superior behaviour of silicon nitride when contacting metal raceways under pure sliding conditions, thanks to the smoother surface and the higher hardness of the ceramic rolling elements.

Flexible solutions

SKF manufactures and stocks a wide selection of XL hybrid deep groove ball bearings, covering the most commonly used sizes in generators for mainstream wind turbines. For generators in the mega-watt range, which require other bearing sizes or other bearing arrangements, SKF can supply customized solutions.

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